Even a minor error can lead to significant signal loss or faulty splices. The following describes the most common problems, their quick diagnosis, and recommended solutions. Fiber contamination Alignment error messages. Splices with visible. A faulty or incompatible AC power adapter can cause poor splice quality and damage to DVP740, DVP760, or DVP765 fusion splicers due to unstable voltage or incorrect polarity. Can a faulty power supply actually ruin my fiber optic splicing results? 2. 1 dB). The factors that cause this fault can be analyzed from the following points: (1) Is the external power supply normal? (2) Is the external switch normal? (3) Can you see the motherboard information when you turn it on? If not, it may be that the motherboard is damaged. Stuck, it may be a program. This guide reveals the secrets to fusion splicing with little fluff—just proven, straightforward techniques refined from years of work in the field. INNO fusion splicers are designed to actively support.